feature(database-connection): Fix error handling

frontend/src/App.tsx

@@ -13,7 +13,7 @@ const App: FunctionComponent = () => (
         <Switch>
             {/*<Route exact path={'/'} component={(props: IMainPageProps) => (<MainPage {...props}/>)} />*/}
             <Route path={'/season/:id'} component={(props: IMainPageProps) => (<MainPage {...props}/>)} />
-            <Redirect to={'/season/1'} />
+            <Redirect to={'/season'} />
         </Switch>
     </Router>
 );